Finite Group Databasebeta
Cayley diagram

C16×D8 #12037

order256
nilpotency class3
isoclinismisoclinic class of D8
automorphismAut(G) = C22×C4×#3003 (order 2048) · Inn(G) = D4 · Out(G) = C23×C4×D4
homologyAbelianization (H1) = C22×C16 · Schur multiplier (H2) = C23

Aliases

direct productC16×D8

Subgroups

subgroupG/H
centerC2×C16D4
commutatorC4C22×C16
Frattini, cosocleC4×C8C23
socleC22C8×D4
prime radicalC2×D8C8
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C16 ◁ C4×C16 ◁ G
LECSG ▷ C4×C8 ▷ C2×C4 ▷ C2 ▷ C1

129 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 24
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 3 generators on 24 points:

(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16);(17,18,19,20,21,22,23,24);(18,24)(19,23)(20,22)

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#93745, #93755, C16×D16, …
maximal normal subgroup of#93745, #93755, C16×D16, …
maximal quotient ofC16×D16, C16×SD32, C16×Q32, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 5025);